reactor multipoint thermocouples

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We sense it the best

REACTOR MULTIPOINT THERMOCOUPLES

PLEASE NOTE that this document is the property of Pyro Electric Instruments Goa Pvt. Ltd.It cannot be shared without written authorization by Pyro Electric. All intellectual information of Pyro Electric Groupis protected and unauthorized disclosure will invite strong legal action.

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Temperature measurement systems for monitoring catalyst

temperature is a vital aspect of a hydrocarbon reactor.

Atypical reactor in a refinery such as a hydrotreater would

employ such temperature measuring sensros in the catalyst

bed, popularly known as Multipoint Reactor thermocouples.

Pyro Electric Instruments Goa, India, specializes in advanced

multipoint temperature sensors for catalyst beds, by using

the flexible multi-junction thermocouple technology to

generate a profile of temperature. Such a technology can be

employed in all the catalyst bed reactors for DHT, VGO,

DHDS and CCR plants.

Pyro Electric's CATALYST PROFILER multipoint system

consists of one or more thermocouple sheaths, which can

provide between 2 to 9 measuring points on each sheath. Depending on the process connection flange size, the catalyst profiler can

employ upto 10 thermocouple sheaths or 80 sensing points through one nozzle, and spread over the catalyst bed.

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A 40 point Catalyst profiler Reactor thermocouples for a PX reactor ready for hydrotest


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The thermocouple sheaths have a robust Mineral Insulated

construction, and are directly TIG welded to the process

flange. These sheaths exit through the secondary sealing

containment chamber and terminate into a Junction box

directly or remotely. The thermocouple sheaths can be

provided special ceramic to metal cold end sealing to ensure

leak-proof sheath design and close any possible leakage

paths through the Mineral insulated sheath.

The sheath's swaged design allows for higher diameter in the

welding zones, thereby improving the weld joint reliability.

The swaged design of sheath as well cuts down heavily on the

number of weld joints due to avoidance of intermediate feed

through sleeves at weld points.

The Catalyst Profiler comes with a complete in-reactor

installation kit consisting of

- cleats for welding onto the reactor wall,

- brackets and support structures

These kits are worked on right from concept & design to installation and site support, and supervised by our team of site engineers

Every component & manufactured product is 100% tested for performance & reliability at our facility in Goa. Special attention is given to

aspects such as

a) PMI

b) Thermocouple accuracy and characteristics

c) Weld joint integrity by hydro and pneumatic pressure test, alongwith Dye Penetrant test

d) Sheath integrity test

e) 100% material traceability

At Pyro Electric, we would be glad to share our applications and answer questions about the Catalyst Profiler. Please email us at

[email protected] or visit us at www.pyro-electric.in and we will get in touch with you.

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Site installation being carried out in a DHT reactor at a refinery in North India. Location : Bhatinda

Typical installation arrangements of wall supports, brackets and circular supports at one of the site in Southern India. Location : Mangalore


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Vertical Mounting of Thermocouples

This arrangement can replace the 'spider-web' configuration in many cases, however is also ideal in cases of hot junctions located in different axis and plane ( such as spiral arrangement ).

In such a design, the vertical support structure allows for routing the thermocouples along the length of the reactor and generating a hot junction profile which is more dense compared to the concentric design.

Circular Concentric mounting of Thermocouples

This arrangement is typically suited in bed type reactors wherein the measuring points are located in a single axis fashion.

In such a case, the 'spider-web' configuration of the support structure locates the hot junctions at various elevations in the SAME plane.

Catalyst profiler Thermocouple Assembly triumph over regular Multipoint Thermocouple Assembly

Catalyst profiler Multipoint Thermocouple assembly comprises of one or more mineral insulate Thermocouple cable with several hot junctions along the length.

Assembly can be designed to provide several sensing points to measure the Temperature inside the vessel.

Each sensing point is independent & isolated from one another & ungrounded from sheath.

Seamless sheath along the entire length ensures usage at very high operating pressures. The welded end of the sheath is checked by N2 pressure test at 100 Bar.

Welded to mounting flange & provided with secondary containment chamber to ensure safe & reliable operation for use in high pressure vessels.

Sensing points can be placed anywhere inside the vessel or catalyst bed, with minimum mounting hardware.

Catalyst profiler Multipoint Thermocouple assembly can be designed for use on Retrofit vessel or on Reactor or on any other hydrocarbon storage equipment & our scope could also include design, supply, installation & commissioning of the temperature profiling system.

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Can be supplied with 2-Wire Temperature Transmitter of reputed Make with HART , Fieldbus or Profibus protocol.

COMPLETE IN-REACTOR INSTALLATION STRUCTURES FOR

Bracket installation underway in a VGO reactor. Location : Bhatinda Client : HMEL. Licensor : Axens


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Minimum Sheath

thickness in mm

Thermocouple

sheath 'OD'

No of

Conductors

Simplex sensing

Points

Duplex Sensing

Points

mm Inches

9.5 3/8" 16 8 nos 4 nos 1.5

9.5 3/8" 12 6 nos 3 nos 1.5

9.5 3/8" 8 4 nos 2 nos 1.5

9.5 3/8" 6 3 nos 1.5

9.5 3/8" 4 2 nos 1 no 1.5

12.7 1/2" 18 9 nos 1.5

SRL TYPICAL PARTS DESCRIPTION TYPICAL DIMENSION / SIZE TYPICAL MATERIAL TYPICAL

01 Junction Box, Ex-proof IIC & W/p to IP:66 - Die cast Al 01 02 Terminal Strip, 2 Rows of 20 terminals each 2.5 Sq mm - 4003 Nipple 2” NPT(M) X2” NPT (M) SS 316 0204 Union 2” NPT (F) X2 NPT (F) SS 316 0105 Reducer 3” x 2” SS 316 0106 Pipe for containment chamber 3” Sch 80, 120 mm long SS 321 0107 Blind Flange 6” 1500# RF ASTM A182 F3321 0108 Feed thru’ OD=12.7 SS 321 0609 TC sheath, MI, type ‘K’, 9.5, with 3 nos duplex sensing points OD=9.5 SS 321 0310 Flange 1.5” 1500#RF A182 F321 0111 Monoflange Manifold with block & bleed Value 1.5” 1500# RF A182 F321 0112 Pressure Gauge (Range: 0 to 160 kg Cm2) - - 0113 Pipe 1/2” Sch 160, 70 mm long SS 321 01

QTY.


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SITE SUPPORT ACTIVITIES OFFERED BY US FOR CATALYST PROFILER THERMOCOUPLES

Pyro Electric Instruments Goa - India offers complete assistance for site installation, supervision and satisfactory handover of the Catalyst Profiler thermocouples. The Catalyst Profiler site support team consists of

a) A senior engineer with an experience of over 10 years – Head of the team

b) A welder

c) 3 fitters / helpers

The site support team is guided by the internal OHSAS guidelines of the Company

driven by ISO 18001. The team is equipped with PPE at all times

ACTIVITIES undertaken as a part of the package by Pyro Electric as a Reactor thermocouple vendor :

a) Safety Induction and Orientation

b) Meeting with Mechanical contractor at the project site, for scheduling the installation

c) Meeting with the customer and licensor.

d) Preparation of a plan of installation activity and the Inspection plan

e) Identification and marking of the points of installation inside the reactor.

f) Welding of brackets on the wall

g) Fixing of brackets on the arms, and then arms to the circular support.

h) MARKING of Hot junction locations on the support as per requirements

i) Functional check of the thermocouples before installation

j) Straightening of MI thermocouple near nozzle

k) ENSURE installing the flange gasket before pushing the thermocouples inside the nozzle

l) Guide the MI thermocouples to its locations inside the reactor onto the brackets

m) Bolt the flange

n) Functional test of Thermocouples – mV output and response time checking

o) Offer final inspection to Licensor


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Ordering Example - THERMOCOUPLE

Model No: 400#-MI-2-K-6-20AWG-SS316-IEC584-CJT1001-400-D_IP67-1-HA108-SS316-F316-250-0-80-150-1/2"-150-RF-28-26-16-0-0-7-6-Op 1A,3A,5A,4B,31A,15B,16B

Model Suffix Codes Description965 #TC ................................................................................................................................................. 965#TC Multipoint thermocoupleThermocouple Type MI............................................................................................................................................. Mineral Insulated

Number of TC sheaths 1 - 10 ( define )................................................................................................................... Number of sheaths welded to the flangeNumber of TC points ( define ).................................................................................................................... Total number of measuring points ( e.g 40 )

Each TC element 1......................................................................................................................................... Simplex 2......................................................................................................................................... Duplex

Element Type J.................................................................................................................................... Iron Constantan K.................................................................................................................................... Chromel Alumel T.................................................................................................................................... Copper Constantan E.................................................................................................................................... Chromel Constantan N.................................................................................................................................... Nicrosil Nisil

Sheath Diameter of TC 9.5............................................................................................................................ 9.5mm 12.7......................................................................................................................... 12.7mm

Sheath Material for TC 316..................................................................................................................... SS316 316L................................................................................................................... SS316L 321..................................................................................................................... SS321 INC 600.............................................................................................................. Inconel 600

Calibration Standard ANSIMC96.1................................................................................................ TC calibration as per ANSIMC 96.1 DIN43710..................................................................................................... TC calibration as per DIN 43710 IEC60584..................................................................................................... TC calibration as per IEC 60584

Junction Box Type JD_IP67.................................................................................................. Weatherproof with IP67 Certified as per IEC 60529 JC........................................................................................................... Explosion Exd IIC T6,IP67 as per IEC 60079 (For more options refer table H)

No of Conduit Entries 01-40................................................................................................. Number of input + output entries XX ...................................................................................................... Note Applicable

Primary Seal W.................................................................................................. Welded

Secondary Seal CC........................................................................................... Containment Chamber

Flange Material F321................................................................................... SS 321 F316................................................................................... SS316 F316L................................................................................. SS 316L (Other options available)

Each Thermocouple location / sheath A1,A2,A3,A4......( define length )................................... A1 = location of first measuring point on sheath 1 B1,B2,B3,B4......( define length )................................... B1 = location of first measuring point on sheath 2 ( and so on)

Head extension length mm* N................................................................................ Head extension length 'N' mm

Flanged Process Connection Size 2........................................................................... 2" ANSI (Other options available)

Flanged Process Connection Rating 150#................................................................ 150# as per B16.5 300#................................................................ 300# as per B16.5 600#................................................................ 600# as per B16.5 900# ............................................................... 900# as per B16.5 1500# .......................................................... 1500# as per B16.5 2500# .......................................................... 2500# as per B16.5

Flanged Process Connection Facing BLRF........................................................... Blind Raised Face BLRTJ......................................................... Blind Ring Type Joint

Options...................................................................................................................................................................... (For options refer table A)

*Please consult our marketing team for any non standard dimensions. Note: For field which are not applicable ,select 'XX' or enter '0' whichever is mentioned .


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REFERENCES OF CATALYST PROFILER SUPPLIES MADE BY PYRO ELECTRIC

The supply was made to :

The reactor was :

The number of sensing points were :

The number of sheaths were :

The pressure ra�ng was :

The quan�ty supplied was :

The year of supply was :

Lukoil refinery RUSSIA

HDS

4 point and 8 point

2 sheaths and 1 sheath

900#

2

2008


The reactor was :

The licensor for the plant was :






Indian Oil Corpora�on Ltd, Mathura refinery

CCR

Axens

6 simplex points

1 sheath

300#

1

2008


The reactor was :







HPCL Mi�al Energy Ltd, Bha�nda INDIA

DHDT and VGO

Axens

6 point, 12 point, 18 point and 24 point (all duplex)

maximum 8 sheaths per assembly

900#

10

2012


The reactor was :







Reliance Industries Ltd, Jamnagar INDIA

PX4, Isomeriza�on and Transalkyla�on

CLG

40 duplex points and 9 duplex points

maximum of 10 sheaths per assembly

300#

3

2015 ( not yet installed)


The reactor was :







Mangalore refinery and Petrochemicals INDIA

GOHDS

Axens

12 duplex points

4 sheaths per assembly

900#

3

2010


The reactor was :







HPCL Mi�al Energy Ltd, Bha�nda INDIA

DHDT and VGO

Axens

6 point, 12 point, 18 point and 24 point (all duplex)

maximum 8 sheaths per assembly

900#

10

2014 ( installed and running)


The reactor was :







Hindustan Petroleum Corpn Ltd, INDIA

DHDS

DuPont, Isotherming technology

12 duplex points

3 sheaths per assembly

900#

2

2015 ( installed and running)


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Performance

Certificate Received

Performance


Performance


Performance


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reactor multipoint thermocouples

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